There are 3 types of means.
But what is the difference between them?
An introduction to the arithmetic, geometric, and harmonic mean.
But what is the difference between them?
An introduction to the arithmetic, geometric, and harmonic mean.
1οΈβ£ The well-known Arithmetic Mean
Calculated as the sum of the values divided by the total number of values.
- We use it when the data has the same unit.
- Outliers can heavily influence this mean.
Calculated as the sum of the values divided by the total number of values.
- We use it when the data has the same unit.
- Outliers can heavily influence this mean.
2οΈβ£ Geometric Mean
Calculated as the N-th root of the product of all values.
(N is the number of values)
- More appropriate for dependent values, percentages, fractions, or widely-ranging data.
- Does not accept negative or zero values
Calculated as the N-th root of the product of all values.
(N is the number of values)
- More appropriate for dependent values, percentages, fractions, or widely-ranging data.
- Does not accept negative or zero values
3οΈβ£ Harmonic Mean
Calculated as the number of values N divided by the sum of the reciprocal of the values.
- Appropriate to calculate the average rate (speed, frequency)
- Does not take rates with a negative or zero value
Calculated as the number of values N divided by the sum of the reciprocal of the values.
- Appropriate to calculate the average rate (speed, frequency)
- Does not take rates with a negative or zero value
That's it for today.
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Like/Retweet the first tweet below for support and follow @levikul09 for more Data Science threads.
Thanks π
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